Sanitizing Plist UTF8 strings #2482

I like to resolve this issue asap. I would appreciate your feedback on the solution.
I'm willing to do whatever it takes to fix this. Let me know if this is the way to do it.

Thank you, Ladi
Just to be clear here. Do you want me to fix it for Ruby <1.9? The message above is confusing for me in terms what to do next. ;) Thank you.